Ethereum's Dencun Devnet, Goerli planning, Eth

The Ethereum Core Developers recently convened for their 175th Execution Layer (EL) call, discussing surrounding development networks (devnets), the intricate Goerli upgrade timeline, and the unveiling of a revolutionary RPC method known as eth_multicall. Here's a detailed exploration of the key insights shared during this comprehensive meeting.

1. Devnet Updates:

Devnet 11 Stability: The community reported Devnet 11 as mostly stable, addressing minor peering intricacies between EthJS and Lodestar.
Lighthouse Testing: Rigorous testing of new Lighthouse changes, specifically those related to QUIC, is actively underway on Lodestar & Nimbus.
Devnet 12 Launch Plans: Despite potential incomplete client integrations, there's an agreement to launch Devnet 12 next week with a prerequisite of 3+ client integrations.
Client Readiness: Teku, lodestar, and an external Lighthouse contributor expressed readiness, while further discussion is scheduled for the upcoming Monday testing call.
Execution APIs Spec Issue: Resolving an issue related to the execution APIs spec generated consensus, with a notable emphasis on explicit cases to safeguard against potential network splits.

2. Execution Payload Validation Issue:

Mikhail and Dustin's Insight: Discussion unfolded around a critical issue where certain EL clients validate an execution payload as INVALID on the initial receipt but subsequently mark it as VALID.
Testing Imperative: The potential impact on network stability was acknowledged, prompting a collective call for comprehensive testing.
Varied Experiences: EL teams shared their experiences, with Nethermind reporting rare occurrences and Teku highlighting the importance of clear spec communication to navigate such challenges.

3. Goerli Upgrade and Chaos Testing:

Upgrade Consensus: Participants reached a consensus to upgrade Goerli to Dencun, with the upgrade deadline set for around December 20th.
Post-Upgrade Period: Following the upgrade, a substantial three-month period was designated for validator shutdown, withdrawal, and a unique phase of "chaos testing."
Timeline Divergence: Differing opinions surfaced regarding the launch timeline, with a notable inclination towards Goerli release+3 months or mainnet launch+1 month.

4. Eth Multicall Proposal:

MicahZoltu's Proposal: A spotlight was cast on eth_multicall, a groundbreaking RPC method introducing advanced features for simulating complex transaction sets.
Implementation Progress: Nethermind and Geth have initiated implementations, while the hope is to have it implemented in all EL clients including Erigon and Besu.
Validation Modes: Two distinct modes were introduced - validation on (strict) and validation off (similar to eth_call's current validation semantics).
Use Case Spectrum: The application spectrum ranges from simulating ERC20 approvals & swaps to oracle updates, showcasing the versatility of eth_multicall.

Ethereum Execution Layer Call 175 demonstrated the community's commitment to discussions on devnet progression, payload validation challenges, the Goerli upgrade strategy, and the introduction of eth_multicall. The nuanced insights shared underscore the collective dedication to ensuring network stability and achieving consensus on critical decisions.

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